Crosman 40001 1911 Semi-Auto .177 BB CO2 Air Pistol Made using the highest quality components Performance and quality tested The most trusted name is airsoft and airgun accessories and equipment Polymer frame with checkered synthetic grips Precision steel barrel Convenient drop-out magazine for fast reloading holds 20 BBs Removable grip panel for easy CO2 replacement Picatinny accessory rail, fixed blade front and notched rear sights